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Fishing the South Platte in Denver

Urban fishing on the South Platte through Denver: carp on the fly, smallmouth and surprise trout near Confluence Park, where to go and what to use.

Updated November 14, 2026. 2 min read.

Right now

Flow nowLoading…
WeatherLoading…

Live from USGS gauge 06714000 and National Weather Service.

What to tie on now

Flies
Midges #20-22, small BWO nymph #20, San Juan worm, small streamer for carp and browns
Rig
Two-fly nymph rig with 5x, indicator set a bit deeper than the water. Slow seams below riffles.

Best flow range here: about 100 to 500 cfs. The live flow above tells you where today sits.

Flies checked against local shop reports on Nov 15. Ask at the local fly shop for what hatched this morning. They know before we do.

Water
Urban South Platte from Chatfield to downtown and beyond
Drive from Denver
You're already there; it runs through town
Access
Greenway parks along the river trail, including Confluence Park
Best for
Carp on the fly, smallmouth bass, the odd big trout
Season
Carp spring through fall; trout in cooler months
Gauge
USGS 06714000, South Platte at Denver
Dogs
Leashed dogs on the greenway trail

Where to park

Confluence Park

  • About a dozen free spots between the aquarium and REI. Otherwise it's metered street parking (often 2-hour) or paid lots on Platte St.
  • Free parking also at Fishback Park and City of Cuernavaca Park, both on the river trail.

Lots, fees and hours change. Check posted signs when you arrive.

Overview

The South Platte through Denver isn't pretty everywhere, but it's a real fishery. Carp over 30 inches cruise the flats, smallmouth bass have moved in, and Denver Trout Unlimited has helped bring trout back to stretches like Confluence Park. You can fish it on a lunch break.

What you'll catch

Carp on the fly

Carp fishing is mostly stalking: walk slowly, spot a feeding fish, and drop a small nymph or carp fly a foot in front of its nose. Light tippet breaks, so use 3x–4x.

Where to go

Confluence Park downtown, where Cherry Creek meets the river, is the easy starting point. The greenway trail runs along the river for miles, with parks and access points along the way.

Questions anglers ask

Are there trout in the South Platte in Denver?
Yes, in some stretches, especially in cooler months. Carp and smallmouth are more common.
Where can I fish the South Platte downtown?
Confluence Park and the greenway parks along the river trail.
What is the Carp Slam?
Denver Trout Unlimited's annual carp-on-the-fly tournament on the urban South Platte, which raises money for river restoration.

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